Oh, it had to do with the keyboard! I had no idea, but just saw that some letters were mostly but not entirely on one side or the other. TAB
When I order retro diet sodas at the bar, I have to pick up the ___
might have been sort of a tip-off; I wonder if it could be combined with ESC top left. Observations: we type "B" with different hands; and "impostor" looks misspelled to me no matter how it's spelled.